Some Volvo EDC15C11 just refuses to be read with a ktag tool. KessV2 bootmode always solved me this problem – wake up error

Reasons were that my power supply was playing up so used an old atx computer supply.
I’ve managed to do it by a kess v2 as well

For those wanting to read/write and ecu containing the AM29F400, AM29F800 chip with kess v2 just follow theses steps.
Connect ecu to the appropriate pins.
Put it into boot mode by grounding pin 24.
Open ksuite and in protocol menu select boot St… Once in there select Bosch MED 7 29F400. The protocol 114 and is the same for for 29f800 as well.
Just proceed to read and write as normal.
But beware the ksuite doesn’t do checksum this way so be sure to check your files.
Hopefully this can help a few ppl

Btw, you can write this with kess. never used ktag but should be the same tbh
never used i/0 terminal.

Is the ECU going into “Boot mode”? if its not going into boot mode then you have no other option but to remove the eeprom and put into an external programmer. TBH its not that bad.

Have you got MPPS? Mpps is by far the best for boot mode and recovery and will do all 29f*** series under “EDC15 generic mode” but you must be able to get ecu into boot mode.Another important note:To tune the EDC15c11 you only need the 512kb file!!!! Also going through generic mode on mpps, kess, ktag with edc15c11 you must make sure cheksums are done as the software will not correct them!”